The scientists captured and tagged 500 fish and then released them into the lake. Later, the scientists captured 500 more fish and counted that 4 of them were tagged. How many fish can the scientists estimate are in the lake?
"The scientists captured and tagged 500 fish and then released them into the lake. Later, the scientists captured 500 more fish and counted that 4 of them were tagged. How many fish can the scientists estimate are in the lake?"
